mirror of
https://github.com/Xtao-Labs/iShotaBot.git
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71 lines
2.1 KiB
Python
71 lines
2.1 KiB
Python
import asyncio
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import os
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import shutil
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from pathlib import Path
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import aiofiles
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import httpx
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from bs4 import BeautifulSoup
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from defs.bilibili_download import execute
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FFMPEG_PATH = "ffmpeg"
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URL = "http://www.nmc.cn/publish/satellite/fy4b-visible.htm"
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TEMP_PATH = Path("data") / "weather_tmp"
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TEMP_PATH.mkdir(exist_ok=True, parents=True)
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OUTPUT_PATH = TEMP_PATH / "output.mp4"
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class WeatherGraphError(Exception):
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def __init__(self, error: str):
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self.error = error
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async def download_img(client, index: int, url: str):
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try:
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res = await client.get(url)
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if res.status_code != 200:
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print(f"下载天气图片失败，错误代码 {res.status_code}")
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async with aiofiles.open(
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TEMP_PATH / f"img{str(index).zfill(3)}.jpg", "wb"
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) as f:
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await f.write(res.content)
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except Exception as e:
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print(f"下载天气图片失败 {url} {e}")
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async def get_images():
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async with httpx.AsyncClient() as client:
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res = await client.get(URL)
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if res.status_code != 200:
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raise WeatherGraphError(f"获取图片数据失败，错误代码 {res.status_code}")
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html = res.content
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soup = BeautifulSoup(html, "lxml")
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elements = soup.find_all(class_="time")
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tasks = []
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for index, element in enumerate(reversed(elements)):
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url = element["data-img"]
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url = url.replace("medium/", "")
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task = asyncio.create_task(download_img(client, index, url))
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tasks.append(task)
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await asyncio.gather(*tasks)
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async def get_video():
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frame_rate = 6
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ffmpeg_cmd = f'{FFMPEG_PATH} -r {frame_rate} -i "{TEMP_PATH}/img%03d.jpg" -vf scale=1920:1080 -c:v libx264 -pix_fmt yuv420p -y "{TEMP_PATH}/output.mp4"'
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_, code = await execute(ffmpeg_cmd)
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if code != 0:
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raise WeatherGraphError("生成视频失败")
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async def gen() -> Path:
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if not os.path.exists(TEMP_PATH):
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os.mkdir(TEMP_PATH)
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else:
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shutil.rmtree(TEMP_PATH)
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os.mkdir(TEMP_PATH)
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await get_images()
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await get_video()
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return OUTPUT_PATH
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